Okay kiddo, let me tell you about mail-sink.
Did you ever wonder where all the emails that you send go? Mail-sink is a place where emails go before they reach their final destination. It's like a big swimming pool for emails.
Sometimes, people need to test if their emails are working properly, but they don't want to actually send them to real people. That's where mail-sink comes in handy. It's like a pretend world for emails.
When someone sends an email to mail-sink, it doesn't go to the person they intended to send it to. Instead, it goes to a special mailbox where the person can check if everything looks good with their email.
Think of it like sending a pretend letter to a pretend friend. No one else will ever see it, but you can make sure everything is spelled right and the message makes sense.
Mail-sink is a useful tool for people who work with emails a lot, like developers or businesses. And now, you know all about it!